Univention Bugzilla – Bug 47421
UCS updates destroy boot loader configuration
Last modified: 2021-05-14 16:34:01 CEST
A user reports that UCS updates destroy the bootloader settings. An upgrade from UCS 4.2-3 to UCS 4.3-1, as well as, package updates on UCS 4.3-1 destroyed the boot loader configuration. Both systems did not boot anymore and resulted in a blinking prompt. The partitioning is quite simple: * Swap (dev/sda1) * / (dev/sda2) * Additional hard disk (/dev/sdb) for data, mounted at /media/data The boot loader is installed in the MBR on /dev/sda. The user restored the boot loader with Super Grub2 CD and the instructions from https://help.univention.com/t/boot-ucs-system-via-super-grub2-disk/6409
The user executed the updates with apt-get upgrade (for package update) and apt-get dist-upgrade for the upgrade to the next UCS version.
This issue has been filed against UCS 4.3. UCS 4.3 is out of maintenance and many UCS components have changed in later releases. Thus, this issue is now being closed. If this issue still occurs in newer UCS versions, please use "Clone this bug" or reopen it and update the UCS version. In this case please provide detailed information on how this issue is affecting you.